Loam (in geology and soil science) is soil composed mostly of sand (particle size > 63 micrometres (0.0025 in)), silt (particle size > 2 micrometres (7.9 × 10 −5 in)), and a smaller amount of clay (particle size < 2 micrometres (7.9 × 10 −5 in)).

根据《国际制土壤质地分类标准》，土壤质地由粘粒clay＜0.002mm、粉粒silt（0.002~0.02mm）及砂粒sand（0.02~2mm）构成，其中粉砂质粘壤土的粒径占比大小为：粘粒（15~25%）、粉粒（45~85%）及砂粒（0~40%）,这样的土壤类型称之为粉砂质粘壤土。

Loam is a mixture of clay, sand and silt and benefits from the qualities of these 3 different textures, favouring water retention, air circulation, drainage and fertility. These soils are fertile, easy to work with and provide good drainage. Depending on their predominant composition they can be either sandy or clay loam.

The key difference between silt and loam lies in the relative proportions of sand, silt, and clay. While loam contains equal amounts of these particles, silt may have a higher concentration of silt particles compared to sand and clay.

Loam is a mixture of sand, silt, and clay, making it a balanced soil type that is ideal for plant growth. It has good drainage and water retention properties, making it suitable for a wide variety of crops. Silt, on the other hand, is composed of fine …

A silt loam soil (e.g., 15% clay, 65% silt, 20% sand) produces sediment having a balanced mixture of primary particles and aggregates. From: Encyclopedia of Soils in the Environment, 2005

2023年4月8日 · Silt loam soil is composed of 50% or more silt-sized particles with less than 27% clay. Silt loam soils hold a moderate amount of water and can be quite fertile. Plants which hail from mountainous or desert regions may find silt loam too fertile and moist.

Clay loam has a higher clay content, which makes it more prone to compaction and poor drainage. On the other hand, silt loam has a higher silt content, which gives it better drainage and aeration properties. Clay loam tends to be more fertile and nutrient-rich, while silt loam is better suited for crops that require good drainage and aeration.

2010年3月9日 · A fourth term, loam, is used to describe a roughly equal concentration of sand, silt, and clay, and lends to the naming of even more classifications, e.g. "clay loam" or "silt loam." In the United States, twelve soil texture classifications are defined by the USDA: Clay ( 粘土) Silt （粉土） Sand （砂土） Loam （壤土） Silty clay

2024年5月25日 · Loam is a combination of sand, silt, and clay—the three sizes of soil particles from largest to smallest. While there is a good bit of variability, ideal proportions for most garden plants are approximately 40% sand, 40% silt, and 20% clay .